They are two different network protocols which both implement
cryptography.
OpenSSL is primarily used by developers behind the scenes and not
directly by users (though there is an "openssl" command-line tool that
exposes many of OpenSSL's capabilities). I assume the "command prompt
feature" you refer to is a remote shell, which is a built-in part of
the SSH protocol (implemented by OpenSSH).
While you could run a shell through an SSL tunnel, OpenSSL does not
itself implement this. OpenSSL implements SSL/TLS, which is used to
tunnel other protocols. A common example you may be aware of is
banking sites which use HTTPS traffic. This is HTTP (web browsing, for
the most part) traffic encrypted through an SSL/TLS tunnel.
For this to work, both the client and the server must have an SSL/TLS
implementation, of which OpenSSL is one (GnuTLS is another). For
instance, the Apache webserver's mod_ssl uses OpenSSL to allow HTTPS
traffic.
If you don't already know what OpenSSL is, you probably do not want to
use it directly. It sounds like you're looking for SSH, in which case,
I'd direct you to OpenSSH.
On 19-Jul-09, at 10:59 AM, Loke Foo Soon wrote:
Hi All,
I still new in openssl.
May I know what different between openssh and openssl?
They look a same.
May I know how to use the openssl?
Do they have any command prompt feature?
Thanks
-fsloke
